Injen 8-Layer Oiled Cotton Gauze Air Filter w/ Twist Lock - 4in ID / 6in Base / 7.75in H - X-1134-BR fits_2003-2008`Audi`S4 One kit per axle

One kit per axle

we've constructed the core with extruded and strutted tubes that resist chassis flex on the trail

Crafted with precision using 3K twill weave carbon fiber and 100% true vacuum technology this carbon fiber splitter set guarantees ultimate lightness durability and a perfect fit

2 Insert Bushings

Injen 8-Layer Oiled Cotton Gauze Air Filter w/ Twist Lock - 4in ID / 6in Base / 7.75in H - X-1134-BR fits_2003-2008`Audi`S4 One kit per axleWith a rich history in racing and the street performance, Injen Technology has proven itself as a leader in filtration engineering and technology. Lab tested and race proven, Injen's air filter line features state of the art designs and performance. All of Injen's 8 layer cotton gauze oiled air filters feature a tightly layered media that is specified for our use, along with a proprietary filter oil that includes highly advanced tackifiers to stop as